Hi

I am trying to restrict a lookup so it only shows contacts based on the account the opportunity belongs to.  I believe this can be done by the
seed property but have had no joy with this and hopefully someone can point me in the right direction.

<SalesLogix:SmartPartToolsContainer runat="server" ID="OpportunityContacts_RTools" ToolbarLocation="right"> <br />   
<SalesLogix:LookupControl runat="server" ID="lueAssociateContact"  ToolTip="<%$ resources: lueAssociateContact.ToolTip %>" 
ButtonToolTip="<%$ resources: lueAssociateContact.ButtonToolTip %>" LookupEntityName="Contact" 
LookupEntityTypeName="Sage.Entity.Interfaces.IContact, Sage.Entity.Interfaces, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null" 
LookupBindingMode="String" OverrideSeedOnSearch="true" SeedProperty="Account.Id" LookupDisplayMode="ButtonOnly" AutoPostBack="true" 
LookupImageURL="~/ImageResource.axd?scope=global&type=Global_Images&key=plus_16x16" InitializeLookup="true" >
<LookupProperties>
<SalesLogix:LookupProperty PropertyHeader="<%$ resources: lueAssociateContact.LookupProperties.FullName.PropertyHeader %>"
         PropertyName="FullName" PropertyType="" PropertyFormat="None"  UseAsResult="True" ExcludeFromFilters="False"></SalesLogix:LookupProperty>
<SalesLogix:LookupProperty PropertyHeader="<%$ resources: lueAssociateContact.LookupProperties.AccountName.PropertyHeader %>" 
         PropertyName="AccountName" PropertyType="" PropertyFormat="None"  UseAsResult="True" ExcludeFromFilters="False"></SalesLogix:LookupProperty>
<SalesLogix:LookupProperty PropertyHeader="<%$ resources: lueAssociateContact.LookupProperties.Address.City.PropertyHeader %>" 
         PropertyName="Address.City" PropertyType="System.String" PropertyFormat="None"  UseAsResult="True" ExcludeFromFilters="False"></SalesLogix:LookupProperty>
<SalesLogix:LookupProperty PropertyHeader="<%$ resources: lueAssociateContact.LookupProperties.Address.State.PropertyHeader %>" 
         PropertyName="Address.State" PropertyType="System.String" PropertyFormat="None"  UseAsResult="True" ExcludeFromFilters="False"></SalesLogix:LookupProperty>
<SalesLogix:LookupProperty PropertyHeader="<%$ resources: lueAssociateContact.LookupProperties.WorkPhone.PropertyHeader %>" 
         PropertyName="WorkPhone" PropertyType="" PropertyFormat="Phone"  UseAsResult="True" ExcludeFromFilters="False"></SalesLogix:LookupProperty>
<SalesLogix:LookupProperty PropertyHeader="<%$ resources: lueAssociateContact.LookupProperties.Email.PropertyHeader %>" 
         PropertyName="Email" PropertyType="System.String" PropertyFormat="None"  UseAsResult="True" ExcludeFromFilters="False"></SalesLogix:LookupProperty>
</LookupProperties>
<LookupPreFilters>

</LookupPreFilters>
</SalesLogix:LookupControl>

I have changed the code to have the following

SeedProperty="Account.Id" SeedValue="A6UJ9A00GLKB"

This now works if I go to the right account , How do I change the seedValue so that it takes the account.id that I am currently on.  I have tried
MainEntity.Account.Id, Account.Id, AccountId, MainEntity.AccountId, Opportunity.Account.Id, Opportunity.AccountId and probably some others but
no joy.

Thanks

Sorted

Sage.Platform.WebPortal.Binding.WebEntityBinding lueAssociateContactSeedValueBinding = 
new Sage.Platform.WebPortal.Binding.WebEntityBinding("Account.Id", lueAssociateContact, "SeedValue");<br />     
               lueAssociateContactSeedValueBinding.IgnoreFLSDisabling = true;
               BindingSource.Bindings.Add(lueAssociateContactSeedValueBinding);

Looks like you got this all worked out. Binding the SeedValue is the way to go.